To defeat General Kim on the building rooftop, start the fight by running up to him. Either clothesline or slide kick him. He may block it, but there may a chance to hit him. After this, start kicking or punching him. He will block most of your attacks, but you will eventually throw a successful punch or kick. Then, keep attacking with that same attack until he gets dazed or starts blocking. If he blocks, switch attacks (for example, from punches to kicks or vice versa). Keep attacking and doing the same thing. When he gets dazed, you can either grapple him or do a finishing move. He may start to attack when you start a new combo or may attack you when you switch between attacks; be ready to block when he does this. It is unlikely that he will land a successful attack in the middle of your combo, as you will have struck first. Take advantage of this. If you want to do a finishing move, make sure that you do it near the walls so that it inflicts more damage. When he is on the floor, try stomping on him. You may miss most of the time but you may land a successful stomp in. It is also ideal to have a Good Cop rating when fighting him.

To defeat General Kim on the airport runway, you must have the highest Good Cop rating. After getting this, you can fight in a similar way as you did on the building rooftop. Your goal is to get him as dizzy as possible. When you start the
fight, look around the area for an iron pipe. When you find one, try attacking him with it while trying to defend yourself. When he gets dizzy, do the move where Nick swings the pipe over the head. It may do some extra damage, although you may not see the difference. Keep repeating this until the fight is over.